Timer mechanism



FIG. 1 is a top plan view of a timer mechanism showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a right side elevational view thereof, the left side being a mirror image; and

FIG. 5 is a rear elevational view thereof. 

The ornamental design for a timer mechanism, as shown and described. 